Cask for poedit 1.5.5

Added new cask for poedit 1.5.5
Add cask for Pencil

Add cask for Pencil 2.0.3 (http://pencil.evolus.vn)
Add cask for Tagr

Add cask for Tagr 3.1.2 (http://www.entwicklungsfreu.de/tagr.html)
Merge pull request #336 from ragusource/tagr

Add cask for Tagr
Merge pull request #335 from ragusource/pencil

Add cask for Pencil
Merge pull request #334 from ragusource/poedit

Cask for poedit 1.5.5
Merge branch 'fiji' of https://github.com/punintended/homebrew-cask into fiji